Which motion is used to end debate before an immediate vote?

The motion used to end debate before an immediate vote is "Previous question." This motion is crucial in parliamentary procedure because it allows members to conclude the discussion on a particular issue and proceed directly to a vote. When this motion is passed, it indicates that the assembly is ready to make a decision without any further debate on the matter at hand. This is particularly useful in situations where it is clear that prolonging the discussion would be unproductive.

In contrast, other motions serve different purposes. For instance, "Postpone indefinitely" is intended to set aside the matter entirely and can prevent it from being discussed or voted on in the current session. A "Point of order" addresses issues related to the rules of the assembly and does not directly lead to a vote on the discussed motion. "Reconsider" allows a member to bring back an issue that has already been voted on for further discussion, but it does not serve to end debate in the moment. Thus, "Previous question" is the motion that specifically facilitates ending debate and moving straight to voting, making it the correct option.